THERMOPHILIC HIGH-RATE ANAEROBIC TREATMENT OF WASTE-WATER CONTAINING LONG-CHAIN FATTY-ACIDS - IMPACT OF REACTOR HYDRODYNAMICS

Authors
HWU CS MOLENAAR G GARTHOFF J VANLIER JB LETTINGA G
Citation
Cs. Hwu et al., THERMOPHILIC HIGH-RATE ANAEROBIC TREATMENT OF WASTE-WATER CONTAINING LONG-CHAIN FATTY-ACIDS - IMPACT OF REACTOR HYDRODYNAMICS, Biotechnology letters, 19(5), 1997, pp. 447-451
Citations number
21
Categorie Soggetti
Biothechnology & Applied Migrobiology
Journal title
Biotechnology letters → ACNP
ISSN journal
01415492
Volume
19
Issue
5
Year of publication
1997
Pages
447 - 451
Database
ISI
SICI code
0141-5492(1997)19:5<447:THATOW>2.0.ZU;2-J
Abstract
The liquid superficial upflow velocity (V-up) and hydraulic retention time (HRT) on the thermophilic treatment of oleate in expanded granula r sludge bed (EGSB) reactors were investigated. The highest methane co nversion rate of oleate, 93 mg CH4-COD/g VSS.d, was attained in a reac tor operating at a V-up of 1 m/h and an HRT of 24 h. The typical EGSB reactor hydrodynamics (V-up>4 m/h and HRT<10 h) inhibited the treatmen t performance, mainly due to biomass washout in particulate form.